DK165888D0 - DEVICE FOR PROTECTION AGAINST MAGNETIC FLUX IN THE ENVIRONMENTAL ENVIRONMENT OF OBJECTS WHICH MAY BE CHANGED BY MOVING WITH MAGNETIC FLUX IS ISSUE WITH A MEDIUM WHICH MAGNETIC INFORMATION MAY BE REGISTERED - Google Patents

DEVICE FOR PROTECTION AGAINST MAGNETIC FLUX IN THE ENVIRONMENTAL ENVIRONMENT OF OBJECTS WHICH MAY BE CHANGED BY MOVING WITH MAGNETIC FLUX IS ISSUE WITH A MEDIUM WHICH MAGNETIC INFORMATION MAY BE REGISTERED

Info

Publication number
DK165888D0
DK165888D0 DK165888A DK165888A DK165888D0 DK 165888 D0 DK165888 D0 DK 165888D0 DK 165888 A DK165888 A DK 165888A DK 165888 A DK165888 A DK 165888A DK 165888 D0 DK165888 D0 DK 165888D0
Authority
DK
Denmark
Prior art keywords
magnetic flux
magnetic
objects
issue
registered
Prior art date
Application number
DK165888A
Other languages
Danish (da)
Other versions
DK165888A (en
DK168972B1 (en
Inventor
Christian Lesage
Original Assignee
Christian Lesage
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Christian Lesage filed Critical Christian Lesage
Publication of DK165888A publication Critical patent/DK165888A/en
Publication of DK165888D0 publication Critical patent/DK165888D0/en
Application granted granted Critical
Publication of DK168972B1 publication Critical patent/DK168972B1/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0075—Magnetic shielding materials
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • A45C11/18—Ticket-holders or the like
    • A45C11/182—Credit card holders
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers

Abstract

Protection device for protecting against an environing magnetic flux objects which are susceptible of being altered by a magnetic flux, particularly objects presenting a carrier medium for magnetic inscriptions, the protection device being characterized in that it comprises at least a protection layer (1) formed of a material presenting on the one hand a high magnetic permeability coefficient in excess of 5,000 and, on the other hand, a weak coercitive magnetic field lower than 2 Oe.
DK165888A 1986-07-29 1988-03-25 Device for protection against magnetic flux in the environment surrounding objects which can be altered by magnetic flux action, in particular objects with a medium in which magnetic information can be recorded DK168972B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8610960 1986-07-29
FR8610960A FR2602906B1 (en) 1986-07-29 1986-07-29 MATERIAL FOR PRODUCING PROTECTION DEVICES AGAINST THE MAGNETIC ENVIRONMENT OF OBJECTS HAVING A MAGNETIC INSCRIPTION MEDIUM, AND PROTECTION DEVICES MADE OF SUCH MATERIAL
FR8700290 1987-07-21
PCT/FR1987/000290 WO1988001091A1 (en) 1986-07-29 1987-07-21 Device for protecting against an environing magnetic flux, objects susceptible of being altered by a magnetic flux, particularly objects presenting a carrier medium for magnetic inscriptions

Publications (3)

Publication Number Publication Date
DK165888A DK165888A (en) 1988-03-25
DK165888D0 true DK165888D0 (en) 1988-03-25
DK168972B1 DK168972B1 (en) 1994-07-18

Family

ID=9337825

Family Applications (1)

Application Number Title Priority Date Filing Date
DK165888A DK168972B1 (en) 1986-07-29 1988-03-25 Device for protection against magnetic flux in the environment surrounding objects which can be altered by magnetic flux action, in particular objects with a medium in which magnetic information can be recorded

Country Status (10)

Country Link
EP (1) EP0275290B1 (en)
JP (1) JPH01500382A (en)
AT (1) ATE68904T1 (en)
CA (1) CA1297184C (en)
DK (1) DK168972B1 (en)
ES (1) ES2004958A6 (en)
FR (1) FR2602906B1 (en)
GR (1) GR871200B (en)
PT (1) PT85449B (en)
WO (1) WO1988001091A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0397755A4 (en) * 1988-02-04 1992-11-04 Uniscan Ltd. Magnetic field concentrator
US4836293A (en) * 1988-11-21 1989-06-06 Eastman Kodak Company Shielding method for use with electromagnetic balance
US5397881A (en) * 1993-11-22 1995-03-14 Mannik; Kallis H. Third millenium credit card with magnetically onto it written multiple validity dates, from which is one single day as the credit card's validity day selected day after day by the legitimate card owner
DE29618546U1 (en) * 1996-10-24 1997-01-23 Simanok Thomas Case for cards with magnetic stripes and / or chips

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1812660A1 (en) * 1968-11-29 1970-06-11 Reich K & F Tech Spez Device for shielding electrotechnical devices against disruptive fields and rays
DE2631091A1 (en) * 1976-07-10 1978-01-12 Adelt Ingeborg Ingeplastik Cover for magnetically coded card - has identity or credit card in plastic holder with metal insert to screen from magnetic fields
US4174419A (en) * 1978-11-08 1979-11-13 Allied Chemical Corporation Stabilized magnetic shields
JPS585780U (en) * 1981-07-03 1983-01-14 キスコ株式会社 Protective case for bank cards
JPS59161557U (en) * 1983-04-13 1984-10-29 三信物産株式会社 Container for cassette tape
JPS59196470U (en) * 1983-06-16 1984-12-27 株式会社リコー Magnetic recording media storage container
JPS59145755U (en) * 1983-10-24 1984-09-28 朝日化成工業株式会社 Anti-magnetic floppy disk case
JPS5994874U (en) * 1983-10-24 1984-06-27 朝日化成工業株式会社 Anti-magnetic deposit passbook case
JPS6152372U (en) * 1984-04-09 1986-04-08
JPS60192179U (en) * 1984-05-30 1985-12-20 久井　宗裕 Magnetic shielding material for magnetic disk protective cases

Also Published As

Publication number Publication date
CA1297184C (en) 1992-03-10
FR2602906A1 (en) 1988-02-19
JPH01500382A (en) 1989-02-09
FR2602906B1 (en) 1991-10-31
PT85449B (en) 1993-07-30
ATE68904T1 (en) 1991-11-15
DK165888A (en) 1988-03-25
EP0275290B1 (en) 1991-10-23
WO1988001091A1 (en) 1988-02-11
ES2004958A6 (en) 1989-02-16
DK168972B1 (en) 1994-07-18
EP0275290A1 (en) 1988-07-27
PT85449A (en) 1988-07-29
GR871200B (en) 1987-10-15

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed
PBP Patent lapsed